Occurrence of triclosan in the tropical rivers receiving the effluents from the hospital wastewater treatment plant

Environmental Monitoring and Assessment
Gordon C C YangFu-Kuei Chang

Abstract

The objective of this study was to determine the occurrence of triclosan in the tropical rivers where received the effluents from a hospital wastewater treatment plant (HWWTP) in southern Taiwan. Three and ten sampling sites were selected at the Jiaosu River (S0-S2) and Dian-Bao River (S3-S12), respectively. The samples of the HWWTP influent, effluent and receiving river water and sediment were collected and analyzed using ultrahigh-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/ MS). Results showed that the triclosan level in surface water of the Jiaosu River and Dian-Bao River ranged from 3 to 68 ng/L and ranged from <2.7 to 51 ng/L, respectively. The hospital did contribute a loading of triclosan to the neighboring river. The mean value of triclosan concentration in the downstream surface water of the Jiaosu River (S1 20.2 ng/L) was approximately three times higher than that of the background level (S0 6.0 ng/L) (p = 0.011). The concentrations of triclosan in two surface water samples were over the predicted no effect concentration (PNEC) of 50 ng/L for algae. In addition, significant seasonal differences of triclosan in surface water of Jiaosu River (p = 0.020) and the HWWTP effluents (p = 0.302) were ...Continue Reading

References

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Citations

Jan 14, 2017·Environmental Monitoring and Assessment·Gulsum YilmazJochen Tuerk
Dec 14, 2017·International Journal of Environmental Research and Public Health·Fu-Kuei ChangHsin-Jen Tsai
Jun 22, 2018·International Journal of Environmental Health Research·Subir Kumar NagSanjib Kumar Manna
Sep 6, 2019·Environmental Science and Pollution Research International·Tomáš MackuľakLucia Birošová

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